The movements of the robot can be controlled ... .
In robotics, often you have two main parts: the one part that moves through space and has metal parts, joints that move, motors, etc. is called an arm; and the other part that has programs, circuit boards, electronics, etc. is called a controller because it controls the arm.
Control is a good verb here. The program tells the arm exactly what to do. The arm has no other option. Nothing else gives any direction to the arm.
Manipulate is used when someone or something uses a lot of skill with many items to make something happen. Manipulate can mean to move an object in a complicated way. When the robot arm picks up an object, it manipulates the object.